Potential for significant increases to both stratabound and vein type mineralization exists throughout the property. Drilling in Zone 3 has so far been restricted by topography and drilling depth. The furthest hole to the north on the mineral resource (hole PC-95-125) intercepted identical vein type mineralization in the same stratigraphic/structural setting as seen in the underground workings, indicating the vein is still open-ended and continuing to the north. Furthermore, the trend of the vein directly intersects the Rico Showing, where a vein type occurrence has been exposed at surface in bedrock four kilometres north of the last drill hole. This zone also has excellent potential for hosting further stratabound type mineralization.
The southern part of the property contains numerous exposures of vein type material in identical geological settings to that found in the Main Zone. Some wide spaced exploration drill holes have also returned stratabound type mineralization over 3 kilometres south of the defined mineral resource. These mineral showings ("Zones") are approximately 1 kilometre apart and extend approximately 10 kilometres to the south from the Main Zone 3 (at the minesite) to Zone 12.Associated stratabound mineralization has the potential to significantly increase the throughput of the mill, due to its much higher tonnes per vertical meter of depth.
In 2011, CZN completed 26 holes totalling 3,125 metres testing for shallow vein and stratabound mineralization in the immediate mine area and 2,513 metres of coring in four holes approximately 1.5 kilometres north of the mineral resources searching for deeper vein mineralization. Both programs were successful in intersecting mineralization and results from this drilling was reported in press releases date October 3, 2011, November 16, 2011 and February 29, 2012.
Drilling around the Mine Site and north of the existing resources continued in 2012 and results from the 12-hole, 5,629 metre program were announced on November 22, 2012. This program included a 1.3 metre intercept that assayed 2,059 g/t Ag, the highest grade silver intercept from a drill hole from the property, as well as key intercepts from the Mine Site area and the Casket Creek deep target area.
On December 9, 2013, results from an exploration drill program to test a multi-stacked gravity and electromagnetic geophysical anomaly as well as an exploratory program near the mill were reported. The program, which was comprised of five holes totaling 1,472 metres was succesful in that 2 holes to test the geophysical anomaly intersected projections of the Main Quartz Vein and Stockwork mineralization. The exploratory drill program near the mill also intersected Stratabound and Vein mineralization.